US8815428B2 - Frame of a cell of a redox flow battery - Google Patents

Frame of a cell of a redox flow battery Download PDF

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Publication number
US8815428B2
US8815428B2 US13/328,612 US201113328612A US8815428B2 US 8815428 B2 US8815428 B2 US 8815428B2 US 201113328612 A US201113328612 A US 201113328612A US 8815428 B2 US8815428 B2 US 8815428B2
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United States
Prior art keywords
frame
opening
distribution channel
electrode
channel
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US13/328,612
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US20120156535A1 (en
Inventor
Martin Harrer
Herbert BUCSICH
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Dmg Netherlands Bv
Enerox GmbH
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Cellstrom GmbH
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Assigned to CELLSTROM GMBH reassignment CELLSTROM GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUCSICH, HERBERT, HARRER, MARTIN
Assigned to CELLSTROM GMBH reassignment CELLSTROM GMBH CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF ASSIGNEE PREVIOUSLY RECORDED ON REEL 027730 FRAME 0829. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: BUCSICH, HERBERT, HARRER, MARTIN
Publication of US20120156535A1 publication Critical patent/US20120156535A1/en
Assigned to DMG EUROPE HOLDING GMBH reassignment DMG EUROPE HOLDING GMBH MERGER Assignors: CELLSTROM GMBH
Assigned to CELLSTROM GMBH reassignment CELLSTROM GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: DMG EUROPE HOLDING GMBH
Publication of US8815428B2 publication Critical patent/US8815428B2/en
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Assigned to GILDEMEISTER ENERGY STORAGE GMBH reassignment GILDEMEISTER ENERGY STORAGE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DMG NETHERLANDS B.V.
Assigned to DMG NETHERLANDS B.V. reassignment DMG NETHERLANDS B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CELLSTROM GMBH
Assigned to ENEROX GMBH reassignment ENEROX GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GILDEMEISTER ENERGY STORAGE GMBH
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/20—Indirect fuel cells, e.g. fuel cells with redox couple being irreversible
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H01M8/188—Regeneration by electrochemical means by recharging of redox couples containing fluids; Redox flow type batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2459—Comprising electrode layers with interposed electrolyte compartment with possible electrolyte supply or circulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
    • H01M8/242—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y02E60/528—

Definitions

  • the present invention relates to a frame of a cell of a redox flow battery, the frame including an opening that is bordered by a rim, wherein at said rim, a first flow blocker is arranged at the rim which extends into the opening, and further including a distribution channel ending in the opening for supplying or discharging electrolyte liquid to or from the cell, and a semi-cell and a redox flow battery includinq such a frame.
  • FIGS. 3 and 4 A known embodiment of a redox flow battery 50 or a stack 32 of a redox flow battery 50 is illustrated in the FIGS. 3 and 4 .
  • the cells 30 of such a stack 32 usually consist of two adjacent half cells 30 a , 30 b , wherein each half cell 30 a , 30 b is formed in each case from a frame 1 which has an opening 8 in which in each case one electrode 20 is arranged and wherein the half cells 30 a , 30 b are separated at least in the region of the opening 8 by a semi-permeable diaphragm 24 .
  • a first electrolyte liquid flows through the first half cell 30 a of a cell 30 and a second electrolyte liquid flows through the second half cell 30 b of said cell, wherein through electrochemical processes, electric current is generated which can be tapped via electrical connections 48 at the end plates 46 of the stack 32 .
  • redox flow batteries 50 such as, e.g. a vanadium redox battery or a vanadium/polyhalide battery
  • the two electrolyte liquids are chemically largely similar or have just a different oxidation state (e.g., V 2+ and V 3+ , VO 2 + and VO 2+ ). This process can also be reversed, whereby the electrolyte liquid (or the battery) is charged.
  • a plurality of such cells 30 are combined in a redox flow battery 50 to form a stack 32 by arranging the individual cells 30 next to each other so as to achieve a higher power or voltage.
  • the individual cells 30 are separated from each other by bipolar plates 22 .
  • the two electrolyte liquids with different charge states are supplied or discharged via connections 47 in the end plates 46 and conveyed through bores 2 , 3 into the frame 1 and through the cells 30 .
  • the cells 30 are arranged between the two endplates 46 or the pressure plates 45 resting thereon and can be pressed against each other by bolts 40 extending therethrough, which bolts are tightened by nuts 42 , washers 43 and springs 41 .
  • a plurality of stacks 32 can be combined in one redox battery 50 , wherein a group of stacks 32 electrically connected in series is also called strings and a plurality of strings can be operated electrically in parallel.
  • strings a group of stacks 32 electrically connected in series
  • strings a plurality of strings can be operated electrically in parallel.
  • a frame of a redox flow battery which has an opening in which an electrode is inserted. Electrolyte liquid is supplied to the cell or discharged via distribution channels ending in said opening.
  • a projection on the frame, wherein said projection extends into the opening and extends into a recess of the electrode. The electrode rests against the projection. However, up to said projection, the electrolyte liquid can still freely flow past the electrode, whereby a portion of the electrolyte liquid still remains unused.
  • a flow blocker is arranged which extends into the opening and which, in the assembled state with an electrode being in the opening, is pressed into said electrode, and wherein a further flow blocker is arranged in the distribution channel in the region of the distribution channel's inflow region for supplying electrolyte liquid into the cell or in the outflow region for discharging electrolyte liquid, wherein said flow blocker restricts the distribution channel toward the opening.
  • the electrolyte liquid is forced to flow first into the distribution channel where the electrolyte liquid is distributed and from where it can continue to flow into the electrode. In this manner it is prevented that electrolyte liquid in the inflow region or outflow region can bypass the electrode.
  • FIGS. 1 and 2 show a preferred exemplary embodiment.
  • FIGS. 1 and 2 show a preferred exemplary embodiment.
  • FIG. 1 shows a schematic side view of a frame according to the invention
  • FIG. 2 shows a detail of the inflow region of the electrolyte supply of the frame in FIG. 1
  • FIG. 2 a shows a detailed view of the outflow region of the electrolyte discharge
  • FIGS. 3 and 4 show an illustration of a stack of a known redox flow battery or, respectively, a detailed view therefrom.
  • the frame 1 is made from an elastomer such as, e.g., a polyolefin thermoplastic elastomer (TPE or TPO), such as, e.g., Santoprene or a thermoplastic vulcanizate (TPV), in particular by using an injection molding method.
  • TPE or TPO polyolefin thermoplastic elastomer
  • TPV thermoplastic vulcanizate
  • the frame material has a hardness in the range of 40- 95 Shore A, preferred 60- 75 Shore A.
  • an opening 8 is provided in which an electrode 20 , e.g., a mat of carbon fibers can be arranged (see FIG. 4 ).
  • an indentation 7 can be provided in which a bipolar plate 22 can be arranged (see FIG. 4 ).
  • a frame 1 with electrode 20 forms a half cell 30 a , 30 b of a cell 30 of a stack 32 of a redox flow battery 50 , as described above.
  • the frame 1 has through-holes 2 a , 3 a through which, for supplying or discharging electrolyte liquid to or from the cells 30 , electrolyte liquid is pumped through the stack 32 .
  • the hole 2 a serves for supplying and the hole 3 a for discharging a first electrolyte liquid of a half cell.
  • a second electrolyte liquid is conveyed through the holes 2 b , 3 b extending through the frame 1 .
  • channels 4 , 5 are arranged, wherein a channel 4 is connected with one end to the supply hole 2 a for supplying electrolyte liquid and forms a supply channel.
  • the second channel 5 is arranged diametrically opposed and is connected to the discharge hole 3 a for discharging electrolyte liquid and forms a discharge channel.
  • Said channels 4 , 5 can also be arranged in that portion of the front face S which is provided as a sealing surface.
  • the following description of the channel 4 for supplying the electrolyte liquid applies equally to the channel 5 for discharging the electrolyte liquid. However, it is also possible to configure or arrange the supply and discharge channels differently.
  • the channel 4 is open toward the front face S and extends advantageously in a plane parallel to the front face S and ends in a vertical distribution channel 9 which is arranged along a side of the opening 8 and which is bordered toward the opening 8 by a plurality of stud links 10 arranged next to each other.
  • the stud links 10 preferably extend from the bottom of the distribution channel 9 to the upper edge of the indentation 7 or to the front face S; however, it is also possible that they extend only over a portion of this height.
  • the stud links 10 are intended to substantially prevent the electrode from sliding into the distribution channel 9 or is deformed in said channel, which would cause an non-uniform distribution of the electrolyte liquid, and that material flushed out of the electrode such as, e.g., fibers can get into the electrolyte liquid cycle or plug the channel.
  • the electrolyte liquid is supplied via the supply hole 2 a , flows from there via the channel 4 into the distribution channel 9 , is uniformly distributed there, and continues to flow to the electrode 20 arranged in the opening 8 .
  • the electrolyte liquid flows through the electrode 20 , is collected at the opposing side via a further, preferably opposing distribution channel 9 , and is discharged again via the discharge channel 5 and the discharge hole 3 a.
  • flow blockers 11 configured as projections are provided on the rim 6 of the opening 8 , as illustrated in FIGS. 1 and 2 .
  • the flow blockers 11 preferably extend over the entire height h of the opening 8 and from the rim 6 into the opening 8 , thus transverse to the direction of the flow of the electrolyte liquid through the cell 30 or the half cell 30 a , 30 b.
  • the flow blockers 11 are pushed into the electrode 20 and block a flow of electrolyte liquid between the rim 6 and the electrode 20 to the greatest possible extent.
  • a further improvement for suppressing the formation of a flow channel between the frame and the electrode can be achieved if the rim 6 in the inflow region of the channel 4 extends into the distribution channel 9 so as to prevent the electrolyte liquid in the inflow region from flowing directly past the electrode 20 .
  • a further flow blocker 16 implemented as a projection is provided on the rim 6 , wherein the further flow blocker extends into the distribution channel and restricts the distribution channel 9 in the inflow region of the latter toward the opening 8 .
  • the electrolyte liquid is forced to flow first into the distribution channel 9 and only from there can the electrolyte liquid get into the opening 8 or into the electrode 20 .
  • such a further flow blocker 16 can also be arranged at the outflow region of the channel 5 .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)
US13/328,612 2010-12-21 2011-12-16 Frame of a cell of a redox flow battery Active 2032-03-30 US8815428B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA2106/2010A AT510723B1 (de) 2010-12-21 2010-12-21 Rahmen einer zelle einer redox-durchflussbatterie
ATA2106/2010 2010-12-21

Publications (2)

Publication Number Publication Date
US20120156535A1 US20120156535A1 (en) 2012-06-21
US8815428B2 true US8815428B2 (en) 2014-08-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US13/328,612 Active 2032-03-30 US8815428B2 (en) 2010-12-21 2011-12-16 Frame of a cell of a redox flow battery

Country Status (3)

Country Link
US (1) US8815428B2 (de)
CN (1) CN102569862B (de)
AT (1) AT510723B1 (de)

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US7820321B2 (en) 2008-07-07 2010-10-26 Enervault Corporation Redox flow battery system for distributed energy storage
US8785023B2 (en) 2008-07-07 2014-07-22 Enervault Corparation Cascade redox flow battery systems
US8916281B2 (en) 2011-03-29 2014-12-23 Enervault Corporation Rebalancing electrolytes in redox flow battery systems
US8980484B2 (en) 2011-03-29 2015-03-17 Enervault Corporation Monitoring electrolyte concentrations in redox flow battery systems
WO2014083387A1 (en) 2012-11-30 2014-06-05 Hydraredox Technologies Inc. Back plate-electrode-membrane assembly for a redox, flow energy storage electrochemical cell
CN102969517A (zh) * 2012-12-10 2013-03-13 贵州省岑巩县银峰矿业有限公司 一种用于液流电池的液流框装置及其组成的电堆
CN104981933B (zh) 2012-12-14 2017-10-03 海卓瑞道克斯技术控股有限公司 氧化还原液流电池系统及控制其的方法
AT513834B1 (de) * 2013-03-01 2014-08-15 Cellstrom Gmbh Elastomerer Endrahmen einer Redox-Durchflussbatterie
DE102013009629B4 (de) * 2013-06-10 2019-09-12 Carl Freudenberg Kg Elektrodenmodul und Anordnung mit Elektrodenmodulen
KR101480871B1 (ko) * 2013-08-06 2015-01-13 (주)에너지와공조 전해질 균등 공급을 통한 효율 향상이 가능한 프레임 및 이를 포함하는 레독스 흐름 전지 스택
CN103390759B (zh) * 2013-08-13 2014-09-17 湖南省银峰新能源有限公司 一种液流电池的液流框结构及其组成的电堆
CN103441290B (zh) * 2013-09-06 2016-04-13 大连融科储能技术发展有限公司 一种用于全钒液流电池的电极框
CN103647091B (zh) * 2013-12-06 2016-03-02 中国东方电气集团有限公司 双极板组件和液流电池
WO2016072192A1 (ja) * 2014-11-06 2016-05-12 住友電気工業株式会社 電池セル、およびレドックスフロー電池
US10790530B2 (en) 2014-11-06 2020-09-29 Sumitomo Electric Industries, Ltd. Cell frame and redox flow battery
CN107112566B (zh) * 2014-11-06 2020-03-24 住友电气工业株式会社 电池芯和氧化还原液流电池
KR102383349B1 (ko) * 2015-08-21 2022-04-07 스미토모덴키고교가부시키가이샤 프레임, 레독스 플로우 전지용 셀 프레임 및 레독스 플로우 전지
KR101742486B1 (ko) * 2015-09-02 2017-06-02 전자부품연구원 가변 채널을 갖는 플로우 프레임 및 그를 포함하는 레독스 플로우 이차전지
CN107845823B (zh) * 2016-09-21 2023-08-22 中国科学院大连化学物理研究所 一种液流电池电堆的电极框结构
WO2018092215A1 (ja) * 2016-11-16 2018-05-24 住友電気工業株式会社 セルフレーム、セルスタック、及びレドックスフロー電池
EP3544104A4 (de) * 2016-11-16 2019-12-04 Sumitomo Electric Industries, Ltd. Zellrahmen, zellenstapel und redoxdurchflussbatterie
JP6804332B2 (ja) * 2017-02-27 2020-12-23 ユナイテッド テクノロジーズ コーポレイションＵｎｉｔｅｄ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏｒｐｏｒａｔｉｏｎ 電気化学装置および腐食を制御する方法
WO2018201094A1 (en) * 2017-04-28 2018-11-01 Ess Tech, Inc. Methods and systems for rebalancing electrolytes for a redox flow battery system
US11289728B2 (en) 2017-09-01 2022-03-29 Stryten Critical E-Storage Llc Segmented frames for redox flow batteries
US10903510B2 (en) * 2017-11-22 2021-01-26 Sumitomo Electric Industries, Ltd. Redox flow battery
EP3734729A1 (de) * 2017-12-26 2020-11-04 Showa Denko K.K. Elektrode für redox-flussbatterie sowie redox-flussbatterie
DE102022124195A1 (de) 2021-11-30 2023-06-01 FB-TEST-DEV GmbH Fluidsystem einer Redox-Flow-Batterie
AT527309B1 (de) 2023-11-03 2025-01-15 Enerox Gmbh Endplatte für einen Zellstack einer Redox-Durchflussbatterie
WO2025093190A1 (de) 2023-11-03 2025-05-08 Cellcube Energy Storage Gmbh Rahmen für eine halbzelle einer redox-durchflussbatterie

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JPS57113565A (en) * 1981-01-06 1982-07-15 Meidensha Electric Mfg Co Ltd Diaphragm supporter for battery
JP2005228645A (ja) * 2004-02-13 2005-08-25 Sumitomo Electric Ind Ltd レドックスフロー電池セル、電池および電極の保持構造
JP2006324129A (ja) * 2005-05-19 2006-11-30 Sumitomo Electric Ind Ltd レドックスフロー電池およびそのセル
AT501903A4 (de) 2005-11-08 2006-12-15 En O De Energy On Demand Produ Rahmen für eine zelle eines reaktors einer redox-durchflussbatterie

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JPH041657Y2 (de) * 1984-12-10 1992-01-21

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113565A (en) * 1981-01-06 1982-07-15 Meidensha Electric Mfg Co Ltd Diaphragm supporter for battery
JP2005228645A (ja) * 2004-02-13 2005-08-25 Sumitomo Electric Ind Ltd レドックスフロー電池セル、電池および電極の保持構造
JP2006324129A (ja) * 2005-05-19 2006-11-30 Sumitomo Electric Ind Ltd レドックスフロー電池およびそのセル
AT501903A4 (de) 2005-11-08 2006-12-15 En O De Energy On Demand Produ Rahmen für eine zelle eines reaktors einer redox-durchflussbatterie

Also Published As

Publication number Publication date
US20120156535A1 (en) 2012-06-21
CN102569862A (zh) 2012-07-11
AT510723A4 (de) 2012-06-15
CN102569862B (zh) 2016-05-25
AT510723B1 (de) 2012-06-15

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